Landi L, Sabatucci D
Int J Periodontics Restorative Dent. 2001 Jun;21(3):280-7.
Removal of barrier membranes may complicate second-stage implant surgery, particularly in mandibular areas characterized by a shallow vestibule and minimal amount of keratinized tissue. A new surgical technique that permits implant exposure and membrane removal combined with a plastic procedure to improve soft tissue quality both buccally and lingually is presented. A midcrestal incision preserving the keratinized tissue available on the lingual side is designed. A double-layer flap is elevated, allowing membrane removal. The inner, full-thickness layer is then sutured back into place, thus protecting the regenerated bone and allowing a recipient bed for a free gingival graft. The outer, partial-thickness flap is sutured apically, thus deepening the vestibule. The advantages and technical aspects of the procedure are discussed.
去除屏障膜可能会使二期种植手术变得复杂，尤其是在下颌区域，其特点是前庭浅且角化组织量少。本文介绍了一种新的手术技术，该技术允许进行种植体暴露和膜去除，并结合整形手术以改善颊侧和舌侧的软组织质量。设计了一个保留舌侧可用角化组织的正中切口。掀起双层瓣，以便去除膜。然后将内层全厚瓣缝合回原位，从而保护再生骨并为游离龈瓣移植提供受区床。外层部分厚瓣向根尖方向缝合，从而加深前庭。文中讨论了该手术的优点和技术要点。
